Add "clean package" goals before analysing project

The Java plugin now requires compiled classes

tests/src/test/java/org/sonarqube/tests/upgrade/UpgradeTest.java

@@ -205,7 +205,7 @@ public class UpgradeTest {
 
   private void scanProject() {
     MavenBuild build = MavenBuild.create(new File("projects/struts-1.3.9-diet/pom.xml"))
-      .setCleanSonarGoals()
+      .setCleanPackageSonarGoals()
       // exclude pom.xml, otherwise it will be published in SQ 6.3+ and not in previous versions, resulting in a different number of components
       .setProperty("sonar.exclusions", "**/pom.xml")
       .setProperty("sonar.dynamicAnalysis", "false")